Harman US

Arvada, CO Weather & Growing Conditions

Tonight
55°F
Chance Showers And Thunderstorms then Partly Cloudy
A chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms between 8pm and 9pm. Partly cloudy, with a low around 55. West northwest wind 2 to 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Tonight 55°F Chance Showers And Thunderstorms then Partly Cloudy 2 to 7 mph WNW 34%
Saturday 77°F Mostly Sunny then Chance Showers And Thunderstorms 2 to 7 mph NNW 65%
Saturday Night 51°F Chance Showers And Thunderstorms 1 to 5 mph W 51%
Sunday 71°F Chance Showers And Thunderstorms 1 to 6 mph NNE 54%
Sunday Night 49°F Chance Showers And Thunderstorms then Partly Cloudy 0 to 5 mph ENE 32%
Monday 73°F Sunny 0 to 7 mph ENE 3%
Monday Night 51°F Mostly Clear 0 to 6 mph N 11%
Tuesday 77°F Mostly Sunny then Slight Chance Showers And Thunderstorms 0 to 6 mph E 15%
Tuesday Night 53°F Slight Chance Showers And Thunderstorms then Partly Cloudy 1 to 5 mph SW 20%
Wednesday 77°F Partly Sunny then Slight Chance Showers And Thunderstorms 1 to 5 mph NE 16%
Wednesday Night 54°F Slight Chance Rain Showers then Mostly Cloudy 3 mph SW 18%
Thursday 78°F Mostly Sunny then Slight Chance Showers And Thunderstorms 2 to 6 mph N 15%
Thursday Night 55°F Chance Rain Showers then Mostly Cloudy 1 to 5 mph WSW 30%
Friday 79°F Mostly Sunny then Slight Chance Showers And Thunderstorms 1 to 6 mph SSW 16%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Arvada, CO

Last spring frost
May 5
First fall frost
Oct 5
Growing season
151 days
Hardiness zone
6a

Explore more for Arvada, CO: full frost dates · planting calendar · Colorado frost dates

Climate data from the nearest NOAA station, Wheat Ridge 2, Co (2.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.